Changes in online psychoactive substance trade via Telegram during the COVID-19 pandemic

M. BLANKERS ; D. VAN DER GOUWE ; L. STEGEMANN ; L. SMIT-RIGTER | 2021
Dans European Addiction Research (Vol.27, n°6, November 2021) Article : Périodique

BACKGROUND: In this article, we present an evaluation of online psychoactive substance trade via Telegram, a free encrypted social media messenger service. The evaluation took place during the COVID-19 pandemic, which allowed us to monitor the e[...]

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Comparison of strength and adulteration between illicit drugs obtained from cryptomarkets versus off-line

L. CONEY ; A. PEACOCK ; D. VAN DER GOUWE ; L. SMIT-RIGTER ; N. HUTTEN ; M. VENTURA ; A. QUESADA ; M. J. BARRATT | 2025
Dans Addiction (Vol.120, n°1, January 2025) Article : Périodique

BACKGROUND AND AIMS: Drugs sold on cryptomarkets are thought to have lower levels of adulteration and higher strength compared with those sourced off-line. The present study aimed to determine whether cryptomarket and off-line-sourced 3,4-methyl[...]

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The Drugs Information and Monitoring System (DIMS). Factsheet on drug checking in the Netherlands

L. SMIT-RIGTER ; D. VAN DER GOUWE | 2019
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Is drug checking a valuable tool to reduce the harm of drug use? In many countries this is still an ongoing debate, one often hampered by lack of empirical evidence and practical experience. In the Netherlands, government-licensed drug checking [...]

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